230307221825 has 6 divisors (see below), whose sum is σ = 285580955094. Its totient is φ = 184245777440.

The previous prime is 230307221821. The next prime is 230307221839. The reversal of 230307221825 is 528122703032.

It can be written as a sum of positive squares in 3 ways, for example, as 3425526784 + 226881695041 = 58528^2 + 476321^2 .

It is not a de Polignac number, because 230307221825 - 2² = 230307221821 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230307221821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4606144412 + ... + 4606144461.

It is an arithmetic number, because the mean of its divisors is an integer number (47596825849).

Almost surely, 2^230307221825 is an apocalyptic number.

230307221825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

230307221825 is a deficient number, since it is larger than the sum of its proper divisors (55273733269).

230307221825 is an equidigital number, since it uses as much as digits as its factorization.

230307221825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9212288883 (or 9212288878 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

Adding to 230307221825 its reverse (528122703032), we get a palindrome (758429924857).

The spelling of 230307221825 in words is "two hundred thirty billion, three hundred seven million, two hundred twenty-one thousand, eight hundred twenty-five".